Jinja2 Extension for Dates and Times The extension comes with a 'now' tag that provides convenient access to the arrow.now() API from your templates. You can control the output by specifying a format that will be passed to Python's strftime(). TimeExtension extends the environment with a 'datetime_format' attribute. It is used as a fallback if you omit the format for 'now'. jinja2-time implements a convenient interface to modify 'now' by a relative time offset. WWW: https://pypi.org/project/jinja2-time/